Twehous Lake Dam dam
Twehous Lake Dam
Twehous Lake Dam, located in Cole County, Missouri, is a privately owned structure that serves the primary purpose of recreation. Built in 1973, this earth dam stands at a height of 48 feet and stretches 1200 feet in length, creating a surface area of 41 acres and a storage capacity of 996 acre-feet. The dam regulates the flow of TR-Rising Creek, with a maximum discharge capacity of 929 cubic feet per second.
Despite its satisfactory condition assessment as of 2007, Twehous Lake Dam is classified with a high hazard potential. Regular inspections are conducted, with the last one occurring in July 2017, and the dam is under state regulation and permitting. The dam features an uncontrolled spillway and has no associated locks or outlet gates. Overall, while the risk assessment indicates a moderate level of risk, the dam's emergency action plan status and other risk management measures are not specified in the available data.
Water resource and climate enthusiasts will be intrigued by the intricate design and functionality of Twehous Lake Dam. Its role in providing recreational opportunities, regulating water flow, and managing flood risk in the area showcases the importance of such structures in maintaining a balance between human activities and environmental conservation. As a privately owned dam with state regulatory oversight, Twehous Lake Dam represents a collaborative effort in ensuring the safety and sustainability of water resources in the region.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Twehous Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Maries River At Westphalia | 1,000 cfs | → |
| Moreau River Near Jefferson City | 5,050 cfs | → |
| Missouri River At Jefferson City | 86,300 cfs | → |
| Osage River Below St. Thomas | 37,300 cfs | → |
| Gasconade River Near Rich Fountain | 2,320 cfs | → |
| Hinkson Creek At Columbia | 186 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Twehous Lake Dam.
Boat launches
- Us 50;Us 63 Osage County
- Osage County
- Jefferson City
- Old Ferry Road 10801, Cole County
- Callaway County
- Scheuler Ferry Road West 698, Miller County
Campgrounds
- Binder Park
- Rollins Ferry Access - Mdc
- Pine Ridge Recreation Area
- Pine Ridge Campground
- Pine Ridge
- Dry Fork Recreation Area
Track Twehous Lake Dam in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Twehous Lake Dam
Where does the data for Twehous Lake Dam come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the High hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Twehous Lake Dam.